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can anyone tell me what the symptoms of a missing engine are? when i floor my truck it revs then its like the engine cuts out for a second then resumes reving rince and repeat. during the cut out or miss i guess the truck shakes pretty violently. at least its very very noticable. i tried my grandads 91 f150 5.8 like mine and reved his and his just revs nice and smooth. nothing like what mine does. is my truck missing on a cylinder?
If wires are connected properly. Inspect the boots on the sparkplug end of the wires. I had some that had gotten rather gooey. I would do what andym suggested at the least. Mine ran about 200 percent better just by doing these things.
So if you rake the front end the miss will go away.
SERIOUSLY THOUGH, When you had the plugs replaced were all the other things andym suggested done also. Wires,rotor,distributor cap,etc.